Re: [PATCH v2 1/3] dt-bindings: i2c: cadence: Document `fifo-depth` property

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, 17 Mar 2023 07:54:39 -0700, Lars-Peter Clausen wrote:
> The depth of the FIFO of the Cadence I2C controller IP is a synthesis
> configuration parameter. Different instances of the IP can have different
> values. For correct operation software needs to be aware of the size of the
> FIFO.
> 
> Add the documentation for the devicetree property that describes the FIFO
> depth of the IP core.
> 
> The default value of 16 is for backwards compatibility reasons with
> existing hardware descriptions where this property is not specified and
> software has assumed that the FIFO depth is 16.
> 
> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
> ---
> Changes since v1:
>  * Remove quotes around "/schemas/types.yaml#/definitions/uint32"
>  * Add `enum` describing valid values
>  * Use `fifo-depth` instead of `cdns,fifo-depth`
>  * Use `bytes` instead of `words` for the property unit
> ---
>  Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux